Back behind the main stage of the Web Summit is a low key collection of couches. It is there that I met Paddy Cosgrave, the chief executive and co-founder of Web Summit. In front of us, to one side, is a big video screen where we can see Craig Federighi, Apple’s senior vice president of engineering and one of the most important people in global technology, begin his keynote address on privacy and security. On the other side is a long table filled with water and snacks for a team of people working on the summit who move in and…